Floor mat



FIG. 1 is a top plan view of a floor mat showing our new design;

FIG. 2 is an enlarged detailed view thereof, showing region 2 in FIG. 1;

FIG. 3 is a cross section view taken along line 3-3 in FIG. 2 thereof, with portions of the environment removed for ease of illustration; and,

FIG. 4 is a cross section view taken along line 4-4 in FIG. 2 thereof, with portions of the environment removed for ease of illustration.

The broken lines show portions of the floor mat that form no part of the claimed design. 

CLAIM The ornamental design for a floor mat, as shown and described. 